CN215965550U - Clamping and fixing device in cold drawn pipe production process - Google Patents
Clamping and fixing device in cold drawn pipe production process Download PDFInfo
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- CN215965550U CN215965550U CN202121165732.8U CN202121165732U CN215965550U CN 215965550 U CN215965550 U CN 215965550U CN 202121165732 U CN202121165732 U CN 202121165732U CN 215965550 U CN215965550 U CN 215965550U
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- fixing mechanism
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- limiting strip
- cold drawn
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Abstract
The utility model discloses a clamping and fixing device in a cold drawn pipe production process, which comprises a drawing base, wherein an inner hole fixing mechanism is arranged above the drawing base, and an outer side fixing mechanism is arranged on one side of the inner hole fixing mechanism. The utility model has the advantages that under the combined action of the inner hole fixing mechanism and the outer side fixing mechanism, the circular tube can be uniformly stressed on the premise of adapting to different circular tube sizes, the circular tube is prevented from collapsing, and the drawing efficiency and the drawing stability are improved.
Description
Technical Field
The utility model relates to the technical field of cold drawn pipe production, in particular to a clamping and fixing device in a cold drawn pipe production process.
Background
The cold-drawn steel tube is one of steel tubes, namely one of the steel tubes classified according to different production processes, is different from a hot-rolled tube, is formed by cold-drawing processing of multiple passes in the process of expanding a blank or a raw material tube, and is usually carried out on a single-chain type or double-chain type cold-drawing machine of 0.5-100T;
when the cold drawn pipe is machined on a cold drawing machine, the cold drawn pipe needs to be clamped by a clamping assembly, the existing clamping device is, for example, the patent number is CN201922088924.2, the patent name is a patent of the cold drawn pipe clamping device for a hydraulic cylinder, although the device can clamp steel pipes with different sizes, the stress of a clamping block on the steel pipe is concentrated under most conditions, the drawing quality is influenced, the device does not have an inner die to offset the clamping force when clamping, one end of the steel pipe is easy to collapse and deform during clamping, the stability is poor, and the drawing efficiency is greatly influenced.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects, the utility model provides a clamping and fixing device in the production process of a cold drawn pipe, and solves the problems.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a clamping and fixing device in a cold drawn pipe production process comprises a drawing base, wherein an inner hole fixing mechanism is arranged above the drawing base, and an outer side fixing mechanism is arranged on one side of the inner hole fixing mechanism;
the inner hole fixing mechanism comprises an L-shaped drawing rod for drawing the upper surface of the base, one end of the L-shaped drawing rod is provided with a first hydraulic cylinder, the telescopic end of the first hydraulic cylinder is provided with a hexagonal frustum, the side surface of the hexagonal frustum is provided with a first limiting strip, one end of the L-shaped drawing rod is provided with a first ring, the surface of one side of the first ring is provided with a partition plate, one end of the partition plate is provided with a second ring, the surfaces of two sides of the second ring are provided with a second limiting strip, one side of the second limiting strip is provided with an expansion block, one end of the expansion block is provided with a first sliding groove, the second limiting strip is in sliding connection with the first sliding groove, the side surface of the expansion block is provided with a second sliding groove, and the first limiting strip is in sliding connection with the second sliding groove;
the outer side fixing mechanism comprises a plurality of connecting rods, one end of each connecting rod is provided with a hydraulic cylinder II, and the telescopic end of each hydraulic cylinder II is provided with an arc-shaped block.
Furthermore, a corrugated plate I is arranged on the side surface of the expansion block.
Furthermore, a corrugated plate II is arranged on the side surface of the arc-shaped block.
The utility model has the beneficial effects that: through hole fixed establishment and outside fixed establishment's combined action, under the prerequisite that adapts to different pipe sizes, can make the pipe atress even, prevent that the pipe from collapsing, improve and draw efficiency and stability.
Drawings
FIG. 1 is a schematic structural view of a clamping fixture used in a cold drawn pipe production process according to the present invention;
FIG. 2 is a schematic cross-sectional view of a separator plate;
FIG. 3 is a schematic top view of ring two;
FIG. 4 is a schematic cross-sectional view of a hexagonal frustum;
FIG. 5 is a schematic view of an outboard securing mechanism;
FIG. 6 is an enlarged schematic view of the bore securement mechanism;
in the figure, 1, a base is pulled; 2. an L-shaped pull rod; 3. a first hydraulic cylinder; 4. a hexagonal frustum pyramid; 5. a first limiting strip; 6. a first circular ring; 7. a partition plate; 8. a second circular ring; 9. a second limiting strip; 10. an expansion block; 11. a first sliding chute; 12. a second chute; 13. a connecting rod; 14. a second hydraulic cylinder; 15. an arc-shaped block; 16. a first corrugated plate; 17. and a second corrugated plate.
Detailed Description
The utility model is described in detail with reference to the accompanying drawings, as shown in fig. 1-6, a clamping and fixing device in the cold drawn pipe production process comprises a drawing base 1, an inner hole fixing mechanism is arranged above the drawing base 1, and an outer side fixing mechanism is arranged on one side of the inner hole fixing mechanism;
the inner hole fixing mechanism comprises an L-shaped drawing rod 2 on the upper surface of a drawing base 1, a first hydraulic cylinder 3 is mounted at one end of the L-shaped drawing rod 2, a hexagonal frustum 4 is mounted at the telescopic end of the first hydraulic cylinder 3, a first limiting strip 5 is mounted on the side surface of the hexagonal frustum 4, a first ring 6 is mounted at one end of the L-shaped drawing rod 2, a partition plate 7 is mounted on the side surface of the first ring 6, a second ring 8 is mounted at one end of the partition plate 7, a second limiting strip 9 is mounted on the side surface of the second ring 8, an expansion block 10 is arranged on one side of the second limiting strip 9, a first sliding groove 11 is mounted at one end of the expansion block 10, the second limiting strip 9 is in sliding connection with the first sliding groove 11, a second sliding groove 12 is formed on the side surface of the expansion block 10, and the first limiting strip 5 is in sliding connection with the second sliding groove 12;
outside fixed establishment includes the connecting rod 13 of 2 one ends of L type pull-out rod, and connecting rod 13 is equipped with a plurality ofly, and hydraulic cylinder two 14 is installed to connecting rod 13 one end, and the flexible end of hydraulic cylinder two 14 installs arc piece 15.
The expansion block 10 is provided with a corrugated plate 16 on the side surface.
The side surface of the arc-shaped block 15 is provided with a corrugated plate II 17, and the friction force among the expansion block 10, the arc-shaped block 15 and the circular pipe can be increased through the action of the corrugated plate I16 and the corrugated plate II 17.
In the embodiment, the electric equipment of the equipment is controlled by an external controller, when the drawing base 1 moves to a specified position, the corresponding equipment is manually operated to move the circular tube to the position of the first circular ring 6, so that the circular tube sleeves the first circular ring 6, then the controller controls the first hydraulic cylinder 3 and the second hydraulic cylinder 14 to extend simultaneously, the first hydraulic cylinder 3 extends to directly drive the hexagonal frustum 4 to move towards the right side, by utilizing the structural characteristics of the hexagonal frustum 4 and the expansion block 10, the expansion block 10 is forced to move backwards when the hexagonal frustum 4 moves towards the right side, the expansion block 10 can stably slide under the action of the first limiting strip 5 and the second sliding groove 12, the expansion block 10 can stably slide under the action of the second limiting strip 9 and the first sliding groove 11, and when the expansion block 10 moves to a certain degree, the corrugated plate 16 is in contact with the inner diameter of the circular tube to clamp the inner wall of the circular tube;
the plurality of hydraulic cylinders II 14 are simultaneously extended to drive the arc-shaped blocks 15 to move oppositely, the arc-shaped blocks 15 drive the corrugated plates II 17 to move until the corrugated plates II 17 clamp the outer sides of the round pipes, at the moment, one ends of the round pipes are in a stable state, and the extended distance between the hydraulic cylinders I3 and II 14 is adjusted to facilitate clamping of round pipes with different diameters; when the hydraulic cylinder I3 is shortened, the expansion block 10 can be automatically reset through the structural characteristics of the first limiting strip 5 and the second sliding groove 12.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (3)
1. A clamping and fixing device in a cold drawn pipe production process comprises a drawing base (1), and is characterized in that an inner hole fixing mechanism is arranged above the drawing base (1), and an outer side fixing mechanism is arranged on one side of the inner hole fixing mechanism;
the inner hole fixing mechanism comprises an L-shaped pulling rod (2) which is used for pulling the upper surface of the base (1), a first hydraulic cylinder (3) is installed at one end of the L-shaped pulling rod (2), a hexagonal frustum (4) is installed at the telescopic end of the first hydraulic cylinder (3), a first limiting strip (5) is installed on the side surface of the hexagonal frustum (4), a first ring (6) is installed at one end of the L-shaped pulling rod (2), a partition plate (7) is installed on the side surface of the first ring (6), a second ring (8) is installed at one end of the partition plate (7), a second limiting strip (9) is installed on the side surface of the second ring (8), an expansion block (10) is arranged on one side of the second limiting strip (9), a first sliding groove (11) is installed at one end of the expansion block (10), the second limiting strip (9) is in sliding connection with the first sliding groove (11), a second sliding groove (12) is formed in the side surface of the expansion block (10), and the first limiting strip (5) is in sliding connection with the second sliding groove (12);
outside fixed establishment includes connecting rod (13) of L type pull rod (2) one end, and connecting rod (13) are equipped with a plurality ofly, and pneumatic cylinder two (14) are installed to connecting rod (13) one end, and arc piece (15) are installed to pneumatic cylinder two (14) flexible end.
2. A clamping fixture in a cold drawn pipe manufacturing process according to claim 1, wherein the expanding block (10) is provided with a corrugated plate (16) at a side surface thereof.
3. The clamping and fixing device in the cold drawn pipe production process according to claim 1, characterized in that the side surface of the arc-shaped block (15) is provided with a corrugated plate II (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121165732.8U CN215965550U (en) | 2021-05-28 | 2021-05-28 | Clamping and fixing device in cold drawn pipe production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121165732.8U CN215965550U (en) | 2021-05-28 | 2021-05-28 | Clamping and fixing device in cold drawn pipe production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215965550U true CN215965550U (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121165732.8U Active CN215965550U (en) | 2021-05-28 | 2021-05-28 | Clamping and fixing device in cold drawn pipe production process |
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| Country | Link |
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| CN (1) | CN215965550U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117772828A (en) * | 2023-12-29 | 2024-03-29 | 浙江丰原型钢科技有限公司 | Energy-saving chain drawing cold drawing machine |
-
2021
- 2021-05-28 CN CN202121165732.8U patent/CN215965550U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117772828A (en) * | 2023-12-29 | 2024-03-29 | 浙江丰原型钢科技有限公司 | Energy-saving chain drawing cold drawing machine |
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